xvi APPENDIX TO PREVIOUS VOLUMES. 



ridge prominent; the tarsi short, much compressed, very 

 thin-edged behind ; feathers of the forehead and crown 

 slightly elongated ; bill and feet black ; head blackish- 

 brown ; neck, back, wings, and tail uniform umber-brown ; 

 throat and fore-neck clove-brown ; the breast lighter, passing 

 into dull-white ; the feathers under the tail bright yellow. 

 Length about 8 inches. 



Mr. Thompson states that, by the kindness of Dr. Burkitt 

 of Waterford, who has a collection of birds killed in Ireland, 

 he exhibited an individual of this African Thrush to the 

 Natural History Section of the British Association, held at 

 Cork in 1843. It was shot by a country lad at Mount 

 Beresford, three miles and a half from Waterford, and is the 

 only individual known to have occurred in Europe. Mr. 

 Yarrell has figured and described the identical specimen in 

 the Supplement to his British Birds, and in the second 

 edition of that work. 



7. Petrocincla saxatilis. Common Rock-Thrush. The 

 genus Petrocincla, allied to the Thrushes, properly so called, 

 and the Saxicolinse, especially the Vitiflorae, is characterized 

 by a rather slender, compressed bill, the upper mandible with 

 the ridge narrow, the notches obsolete, the tip very small, and 

 slightly decurved, the lower mandible straight, with the tip 

 acute ; tarsus rather stout, short, compressed, anteriorly with 

 a long plate and four scutella ; lateral toes about equal ; 

 claws slender, arched, much compressed, acute ; short bristles 

 at the base of the bill ; w T ings rather long, the third quill 

 longest ; tail short, even, or slightly emarginate. 



The species inhabit the rocky and stony parts of the 

 mountainous districts of the southern and middle divisions of 

 Europe. 



Petrocincla saxatilis has the head, neck, and fore part of 

 the back greyish-blue, the scapulars tinged with brown, the 

 rest of the back white ; the upper tail-coverts dark brown ; 

 the wings and two middle tail-feathers dark brown, the other 

 tail-feathers and the lower part of the body light chestnut- 

 red. Length 8 inches. 



Mr. Yarrell has figured and described a specimen obtained 

 " on the 19th of May, 1843, by Mr. Joseph Trigg, who shot 



